WordPress Search Problems

Hello, on the wordpress.org website, when you search for a plug in, if you select any of the options such as relevance, or most popular, or highest rated, you get useless results that have nothing to do with what you typed into the search box. I am searching for a voting plug in for example, and I want to know which voting plug ins have the most downloads, but when I enter voting, click search, and select most popular, Wp-ECommerce comes to the front of the list!